drivers/qe/uec.c

   1 /*
   2  * Copyright (C) 2006-2009 Freescale Semiconductor, Inc.
   3  *
   4  * Dave Liu <daveliu@freescale.com>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of
   9  * the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  19  * MA 02111-1307 USA
  20  */
  21
  22 #include "common.h"
  23 #include "net.h"
  24 #include "malloc.h"
  25 #include "asm/errno.h"
  26 #include "asm/io.h"
  27 #include "asm/immap_qe.h"
  28 #include "qe.h"
  29 #include "uccf.h"
  30 #include "uec.h"
  31 #include "uec_phy.h"
  32 #include "miiphy.h"
  33
  34 static uec_info_t uec_info[] = {
  35 #ifdef CONFIG_UEC_ETH1
  36         STD_UEC_INFO(1),        /* UEC1 */
  37 #endif
  38 #ifdef CONFIG_UEC_ETH2
  39         STD_UEC_INFO(2),        /* UEC2 */
  40 #endif
  41 #ifdef CONFIG_UEC_ETH3
  42         STD_UEC_INFO(3),        /* UEC3 */
  43 #endif
  44 #ifdef CONFIG_UEC_ETH4
  45         STD_UEC_INFO(4),        /* UEC4 */
  46 #endif
  47 #ifdef CONFIG_UEC_ETH5
  48         STD_UEC_INFO(5),        /* UEC5 */
  49 #endif
  50 #ifdef CONFIG_UEC_ETH6
  51         STD_UEC_INFO(6),        /* UEC6 */
  52 #endif
  53 #ifdef CONFIG_UEC_ETH7
  54         STD_UEC_INFO(7),        /* UEC7 */
  55 #endif
  56 #ifdef CONFIG_UEC_ETH8
  57         STD_UEC_INFO(8),        /* UEC8 */
  58 #endif
  59 };
  60
  61 #define MAXCONTROLLERS  (8)
  62
  63 static struct eth_device *devlist[MAXCONTROLLERS];
  64
  65 u16 phy_read (struct uec_mii_info *mii_info, u16 regnum);
  66 void phy_write (struct uec_mii_info *mii_info, u16 regnum, u16 val);
  67
  68 static int uec_mac_enable(uec_private_t *uec, comm_dir_e mode)
  69 {
  70         uec_t           *uec_regs;
  71         u32             maccfg1;
  72
  73         if (!uec) {
  74                 printf("%s: uec not initial\n", __FUNCTION__);
  75                 return -EINVAL;
  76         }
  77         uec_regs = uec->uec_regs;
  78
  79         maccfg1 = in_be32(&uec_regs->maccfg1);
  80
  81         if (mode & COMM_DIR_TX) {
  82                 maccfg1 |= MACCFG1_ENABLE_TX;
  83                 out_be32(&uec_regs->maccfg1, maccfg1);
  84                 uec->mac_tx_enabled = 1;
  85         }
  86
  87         if (mode & COMM_DIR_RX) {
  88                 maccfg1 |= MACCFG1_ENABLE_RX;
  89                 out_be32(&uec_regs->maccfg1, maccfg1);
  90                 uec->mac_rx_enabled = 1;
  91         }
  92
  93         return 0;
  94 }
  95
  96 static int uec_mac_disable(uec_private_t *uec, comm_dir_e mode)
  97 {
  98         uec_t           *uec_regs;
  99         u32             maccfg1;
 100
 101         if (!uec) {
 102                 printf("%s: uec not initial\n", __FUNCTION__);
 103                 return -EINVAL;
 104         }
 105         uec_regs = uec->uec_regs;
 106
 107         maccfg1 = in_be32(&uec_regs->maccfg1);
 108
 109         if (mode & COMM_DIR_TX) {
 110                 maccfg1 &= ~MACCFG1_ENABLE_TX;
 111                 out_be32(&uec_regs->maccfg1, maccfg1);
 112                 uec->mac_tx_enabled = 0;
 113         }
 114
 115         if (mode & COMM_DIR_RX) {
 116                 maccfg1 &= ~MACCFG1_ENABLE_RX;
 117                 out_be32(&uec_regs->maccfg1, maccfg1);
 118                 uec->mac_rx_enabled = 0;
 119         }
 120
 121         return 0;
 122 }
 123
 124 static int uec_graceful_stop_tx(uec_private_t *uec)
 125 {
 126         ucc_fast_t              *uf_regs;
 127         u32                     cecr_subblock;
 128         u32                     ucce;
 129
 130         if (!uec || !uec->uccf) {
 131                 printf("%s: No handle passed.\n", __FUNCTION__);
 132                 return -EINVAL;
 133         }
 134
 135         uf_regs = uec->uccf->uf_regs;
 136
 137         /* Clear the grace stop event */
 138         out_be32(&uf_regs->ucce, UCCE_GRA);
 139
 140         /* Issue host command */
 141         cecr_subblock =
 142                  ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
 143         qe_issue_cmd(QE_GRACEFUL_STOP_TX, cecr_subblock,
 144                          (u8)QE_CR_PROTOCOL_ETHERNET, 0);
 145
 146         /* Wait for command to complete */
 147         do {
 148                 ucce = in_be32(&uf_regs->ucce);
 149         } while (! (ucce & UCCE_GRA));
 150
 151         uec->grace_stopped_tx = 1;
 152
 153         return 0;
 154 }
 155
 156 static int uec_graceful_stop_rx(uec_private_t *uec)
 157 {
 158         u32             cecr_subblock;
 159         u8              ack;
 160
 161         if (!uec) {
 162                 printf("%s: No handle passed.\n", __FUNCTION__);
 163                 return -EINVAL;
 164         }
 165
 166         if (!uec->p_rx_glbl_pram) {
 167                 printf("%s: No init rx global parameter\n", __FUNCTION__);
 168                 return -EINVAL;
 169         }
 170
 171         /* Clear acknowledge bit */
 172         ack = uec->p_rx_glbl_pram->rxgstpack;
 173         ack &= ~GRACEFUL_STOP_ACKNOWLEDGE_RX;
 174         uec->p_rx_glbl_pram->rxgstpack = ack;
 175
 176         /* Keep issuing cmd and checking ack bit until it is asserted */
 177         do {
 178                 /* Issue host command */
 179                 cecr_subblock =
 180                  ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
 181                 qe_issue_cmd(QE_GRACEFUL_STOP_RX, cecr_subblock,
 182                                  (u8)QE_CR_PROTOCOL_ETHERNET, 0);
 183                 ack = uec->p_rx_glbl_pram->rxgstpack;
 184         } while (! (ack & GRACEFUL_STOP_ACKNOWLEDGE_RX ));
 185
 186         uec->grace_stopped_rx = 1;
 187
 188         return 0;
 189 }
 190
 191 static int uec_restart_tx(uec_private_t *uec)
 192 {
 193         u32             cecr_subblock;
 194
 195         if (!uec || !uec->uec_info) {
 196                 printf("%s: No handle passed.\n", __FUNCTION__);
 197                 return -EINVAL;
 198         }
 199
 200         cecr_subblock =
 201          ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
 202         qe_issue_cmd(QE_RESTART_TX, cecr_subblock,
 203                          (u8)QE_CR_PROTOCOL_ETHERNET, 0);
 204
 205         uec->grace_stopped_tx = 0;
 206
 207         return 0;
 208 }
 209
 210 static int uec_restart_rx(uec_private_t *uec)
 211 {
 212         u32             cecr_subblock;
 213
 214         if (!uec || !uec->uec_info) {
 215                 printf("%s: No handle passed.\n", __FUNCTION__);
 216                 return -EINVAL;
 217         }
 218
 219         cecr_subblock =
 220          ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
 221         qe_issue_cmd(QE_RESTART_RX, cecr_subblock,
 222                          (u8)QE_CR_PROTOCOL_ETHERNET, 0);
 223
 224         uec->grace_stopped_rx = 0;
 225
 226         return 0;
 227 }
 228
 229 static int uec_open(uec_private_t *uec, comm_dir_e mode)
 230 {
 231         ucc_fast_private_t      *uccf;
 232
 233         if (!uec || !uec->uccf) {
 234                 printf("%s: No handle passed.\n", __FUNCTION__);
 235                 return -EINVAL;
 236         }
 237         uccf = uec->uccf;
 238
 239         /* check if the UCC number is in range. */
 240         if (uec->uec_info->uf_info.ucc_num >= UCC_MAX_NUM) {
 241                 printf("%s: ucc_num out of range.\n", __FUNCTION__);
 242                 return -EINVAL;
 243         }
 244
 245         /* Enable MAC */
 246         uec_mac_enable(uec, mode);
 247
 248         /* Enable UCC fast */
 249         ucc_fast_enable(uccf, mode);
 250
 251         /* RISC microcode start */
 252         if ((mode & COMM_DIR_TX) && uec->grace_stopped_tx) {
 253                 uec_restart_tx(uec);
 254         }
 255         if ((mode & COMM_DIR_RX) && uec->grace_stopped_rx) {
 256                 uec_restart_rx(uec);
 257         }
 258
 259         return 0;
 260 }
 261
 262 static int uec_stop(uec_private_t *uec, comm_dir_e mode)
 263 {
 264         ucc_fast_private_t      *uccf;
 265
 266         if (!uec || !uec->uccf) {
 267                 printf("%s: No handle passed.\n", __FUNCTION__);
 268                 return -EINVAL;
 269         }
 270         uccf = uec->uccf;
 271
 272         /* check if the UCC number is in range. */
 273         if (uec->uec_info->uf_info.ucc_num >= UCC_MAX_NUM) {
 274                 printf("%s: ucc_num out of range.\n", __FUNCTION__);
 275                 return -EINVAL;
 276         }
 277         /* Stop any transmissions */
 278         if ((mode & COMM_DIR_TX) && !uec->grace_stopped_tx) {
 279                 uec_graceful_stop_tx(uec);
 280         }
 281         /* Stop any receptions */
 282         if ((mode & COMM_DIR_RX) && !uec->grace_stopped_rx) {
 283                 uec_graceful_stop_rx(uec);
 284         }
 285
 286         /* Disable the UCC fast */
 287         ucc_fast_disable(uec->uccf, mode);
 288
 289         /* Disable the MAC */
 290         uec_mac_disable(uec, mode);
 291
 292         return 0;
 293 }
 294
 295 static int uec_set_mac_duplex(uec_private_t *uec, int duplex)
 296 {
 297         uec_t           *uec_regs;
 298         u32             maccfg2;
 299
 300         if (!uec) {
 301                 printf("%s: uec not initial\n", __FUNCTION__);
 302                 return -EINVAL;
 303         }
 304         uec_regs = uec->uec_regs;
 305
 306         if (duplex == DUPLEX_HALF) {
 307                 maccfg2 = in_be32(&uec_regs->maccfg2);
 308                 maccfg2 &= ~MACCFG2_FDX;
 309                 out_be32(&uec_regs->maccfg2, maccfg2);
 310         }
 311
 312         if (duplex == DUPLEX_FULL) {
 313                 maccfg2 = in_be32(&uec_regs->maccfg2);
 314                 maccfg2 |= MACCFG2_FDX;
 315                 out_be32(&uec_regs->maccfg2, maccfg2);
 316         }
 317
 318         return 0;
 319 }
 320
 321 static int uec_set_mac_if_mode(uec_private_t *uec, enet_interface_e if_mode)
 322 {
 323         enet_interface_e        enet_if_mode;
 324         uec_info_t              *uec_info;
 325         uec_t                   *uec_regs;
 326         u32                     upsmr;
 327         u32                     maccfg2;
 328
 329         if (!uec) {
 330                 printf("%s: uec not initial\n", __FUNCTION__);
 331                 return -EINVAL;
 332         }
 333
 334         uec_info = uec->uec_info;
 335         uec_regs = uec->uec_regs;
 336         enet_if_mode = if_mode;
 337
 338         maccfg2 = in_be32(&uec_regs->maccfg2);
 339         maccfg2 &= ~MACCFG2_INTERFACE_MODE_MASK;
 340
 341         upsmr = in_be32(&uec->uccf->uf_regs->upsmr);
 342         upsmr &= ~(UPSMR_RPM | UPSMR_TBIM | UPSMR_R10M | UPSMR_RMM);
 343
 344         switch (enet_if_mode) {
 345                 case ENET_100_MII:
 346                 case ENET_10_MII:
 347                         maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
 348                         break;
 349                 case ENET_1000_GMII:
 350                         maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
 351                         break;
 352                 case ENET_1000_TBI:
 353                         maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
 354                         upsmr |= UPSMR_TBIM;
 355                         break;
 356                 case ENET_1000_RTBI:
 357                         maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
 358                         upsmr |= (UPSMR_RPM | UPSMR_TBIM);
 359                         break;
 360                 case ENET_1000_RGMII_RXID:
 361                 case ENET_1000_RGMII_ID:
 362                 case ENET_1000_RGMII:
 363                         maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
 364                         upsmr |= UPSMR_RPM;
 365                         break;
 366                 case ENET_100_RGMII:
 367                         maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
 368                         upsmr |= UPSMR_RPM;
 369                         break;
 370                 case ENET_10_RGMII:
 371                         maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
 372                         upsmr |= (UPSMR_RPM | UPSMR_R10M);
 373                         break;
 374                 case ENET_100_RMII:
 375                         maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
 376                         upsmr |= UPSMR_RMM;
 377                         break;
 378                 case ENET_10_RMII:
 379                         maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
 380                         upsmr |= (UPSMR_R10M | UPSMR_RMM);
 381                         break;
 382                 case ENET_1000_SGMII:
 383                         maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
 384                         upsmr |= UPSMR_SGMM;
 385                         break;
 386                 default:
 387                         return -EINVAL;
 388                         break;
 389         }
 390         out_be32(&uec_regs->maccfg2, maccfg2);
 391         out_be32(&uec->uccf->uf_regs->upsmr, upsmr);
 392
 393         return 0;
 394 }
 395
 396 static int init_mii_management_configuration(uec_mii_t *uec_mii_regs)
 397 {
 398         uint            timeout = 0x1000;
 399         u32             miimcfg = 0;
 400
 401         miimcfg = in_be32(&uec_mii_regs->miimcfg);
 402         miimcfg |= MIIMCFG_MNGMNT_CLC_DIV_INIT_VALUE;
 403         out_be32(&uec_mii_regs->miimcfg, miimcfg);
 404
 405         /* Wait until the bus is free */
 406         while ((in_be32(&uec_mii_regs->miimcfg) & MIIMIND_BUSY) && timeout--);
 407         if (timeout <= 0) {
 408                 printf("%s: The MII Bus is stuck!", __FUNCTION__);
 409                 return -ETIMEDOUT;
 410         }
 411
 412         return 0;
 413 }
 414
 415 static int init_phy(struct eth_device *dev)
 416 {
 417         uec_private_t           *uec;
 418         uec_mii_t               *umii_regs;
 419         struct uec_mii_info     *mii_info;
 420         struct phy_info         *curphy;
 421         int                     err;
 422
 423         uec = (uec_private_t *)dev->priv;
 424         umii_regs = uec->uec_mii_regs;
 425
 426         uec->oldlink = 0;
 427         uec->oldspeed = 0;
 428         uec->oldduplex = -1;
 429
 430         mii_info = malloc(sizeof(*mii_info));
 431         if (!mii_info) {
 432                 printf("%s: Could not allocate mii_info", dev->name);
 433                 return -ENOMEM;
 434         }
 435         memset(mii_info, 0, sizeof(*mii_info));
 436
 437         if (uec->uec_info->uf_info.eth_type == GIGA_ETH) {
 438                 mii_info->speed = SPEED_1000;
 439         } else {
 440                 mii_info->speed = SPEED_100;
 441         }
 442
 443         mii_info->duplex = DUPLEX_FULL;
 444         mii_info->pause = 0;
 445         mii_info->link = 1;
 446
 447         mii_info->advertising = (ADVERTISED_10baseT_Half |
 448                                 ADVERTISED_10baseT_Full |
 449                                 ADVERTISED_100baseT_Half |
 450                                 ADVERTISED_100baseT_Full |
 451                                 ADVERTISED_1000baseT_Full);
 452         mii_info->autoneg = 1;
 453         mii_info->mii_id = uec->uec_info->phy_address;
 454         mii_info->dev = dev;
 455
 456         mii_info->mdio_read = &uec_read_phy_reg;
 457         mii_info->mdio_write = &uec_write_phy_reg;
 458
 459         uec->mii_info = mii_info;
 460
 461         qe_set_mii_clk_src(uec->uec_info->uf_info.ucc_num);
 462
 463         if (init_mii_management_configuration(umii_regs)) {
 464                 printf("%s: The MII Bus is stuck!", dev->name);
 465                 err = -1;
 466                 goto bus_fail;
 467         }
 468
 469         /* get info for this PHY */
 470         curphy = uec_get_phy_info(uec->mii_info);
 471         if (!curphy) {
 472                 printf("%s: No PHY found", dev->name);
 473                 err = -1;
 474                 goto no_phy;
 475         }
 476
 477         mii_info->phyinfo = curphy;
 478
 479         /* Run the commands which initialize the PHY */
 480         if (curphy->init) {
 481                 err = curphy->init(uec->mii_info);
 482                 if (err)
 483                         goto phy_init_fail;
 484         }
 485
 486         return 0;
 487
 488 phy_init_fail:
 489 no_phy:
 490 bus_fail:
 491         free(mii_info);
 492         return err;
 493 }
 494
 495 static void adjust_link(struct eth_device *dev)
 496 {
 497         uec_private_t           *uec = (uec_private_t *)dev->priv;
 498         uec_t                   *uec_regs;
 499         struct uec_mii_info     *mii_info = uec->mii_info;
 500
 501         extern void change_phy_interface_mode(struct eth_device *dev,
 502                                          enet_interface_e mode);
 503         uec_regs = uec->uec_regs;
 504
 505         if (mii_info->link) {
 506                 /* Now we make sure that we can be in full duplex mode.
 507                 * If not, we operate in half-duplex mode. */
 508                 if (mii_info->duplex != uec->oldduplex) {
 509                         if (!(mii_info->duplex)) {
 510                                 uec_set_mac_duplex(uec, DUPLEX_HALF);
 511                                 printf("%s: Half Duplex\n", dev->name);
 512                         } else {
 513                                 uec_set_mac_duplex(uec, DUPLEX_FULL);
 514                                 printf("%s: Full Duplex\n", dev->name);
 515                         }
 516                         uec->oldduplex = mii_info->duplex;
 517                 }
 518
 519                 if (mii_info->speed != uec->oldspeed) {
 520                         if (uec->uec_info->uf_info.eth_type == GIGA_ETH) {
 521                                 switch (mii_info->speed) {
 522                                 case 1000:
 523                                         break;
 524                                 case 100:
 525                                         printf ("switching to rgmii 100\n");
 526                                         /* change phy to rgmii 100 */
 527                                         change_phy_interface_mode(dev,
 528                                                                 ENET_100_RGMII);
 529                                         /* change the MAC interface mode */
 530                                         uec_set_mac_if_mode(uec,ENET_100_RGMII);
 531                                         break;
 532                                 case 10:
 533                                         printf ("switching to rgmii 10\n");
 534                                         /* change phy to rgmii 10 */
 535                                         change_phy_interface_mode(dev,
 536                                                                 ENET_10_RGMII);
 537                                         /* change the MAC interface mode */
 538                                         uec_set_mac_if_mode(uec,ENET_10_RGMII);
 539                                         break;
 540                                 default:
 541                                         printf("%s: Ack,Speed(%d)is illegal\n",
 542                                                 dev->name, mii_info->speed);
 543                                         break;
 544                                 }
 545                         }
 546
 547                         printf("%s: Speed %dBT\n", dev->name, mii_info->speed);
 548                         uec->oldspeed = mii_info->speed;
 549                 }
 550
 551                 if (!uec->oldlink) {
 552                         printf("%s: Link is up\n", dev->name);
 553                         uec->oldlink = 1;
 554                 }
 555
 556         } else { /* if (mii_info->link) */
 557                 if (uec->oldlink) {
 558                         printf("%s: Link is down\n", dev->name);
 559                         uec->oldlink = 0;
 560                         uec->oldspeed = 0;
 561                         uec->oldduplex = -1;
 562                 }
 563         }
 564 }
 565
 566 static void phy_change(struct eth_device *dev)
 567 {
 568         uec_private_t   *uec = (uec_private_t *)dev->priv;
 569
 570         /* Update the link, speed, duplex */
 571         uec->mii_info->phyinfo->read_status(uec->mii_info);
 572
 573         /* Adjust the interface according to speed */
 574         adjust_link(dev);
 575 }
 576
 577 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) \
 578         && !defined(BITBANGMII)
 579
 580 /*
 581  * Find a device index from the devlist by name
 582  *
 583  * Returns:
 584  *  The index where the device is located, -1 on error
 585  */
 586 static int uec_miiphy_find_dev_by_name(char *devname)
 587 {
 588         int i;
 589
 590         for (i = 0; i < MAXCONTROLLERS; i++) {
 591                 if (strncmp(devname, devlist[i]->name, strlen(devname)) == 0) {
 592                         break;
 593                 }
 594         }
 595
 596         /* If device cannot be found, returns -1 */
 597         if (i == MAXCONTROLLERS) {
 598                 debug ("%s: device %s not found in devlist\n", __FUNCTION__, devname);
 599                 i = -1;
 600         }
 601
 602         return i;
 603 }
 604
 605 /*
 606  * Read a MII PHY register.
 607  *
 608  * Returns:
 609  *  0 on success
 610  */
 611 static int uec_miiphy_read(char *devname, unsigned char addr,
 612                             unsigned char reg, unsigned short *value)
 613 {
 614         int devindex = 0;
 615
 616         if (devname == NULL || value == NULL) {
 617                 debug("%s: NULL pointer given\n", __FUNCTION__);
 618         } else {
 619                 devindex = uec_miiphy_find_dev_by_name(devname);
 620                 if (devindex >= 0) {
 621                         *value = uec_read_phy_reg(devlist[devindex], addr, reg);
 622                 }
 623         }
 624         return 0;
 625 }
 626
 627 /*
 628  * Write a MII PHY register.
 629  *
 630  * Returns:
 631  *  0 on success
 632  */
 633 static int uec_miiphy_write(char *devname, unsigned char addr,
 634                              unsigned char reg, unsigned short value)
 635 {
 636         int devindex = 0;
 637
 638         if (devname == NULL) {
 639                 debug("%s: NULL pointer given\n", __FUNCTION__);
 640         } else {
 641                 devindex = uec_miiphy_find_dev_by_name(devname);
 642                 if (devindex >= 0) {
 643                         uec_write_phy_reg(devlist[devindex], addr, reg, value);
 644                 }
 645         }
 646         return 0;
 647 }
 648 #endif
 649
 650 static int uec_set_mac_address(uec_private_t *uec, u8 *mac_addr)
 651 {
 652         uec_t           *uec_regs;
 653         u32             mac_addr1;
 654         u32             mac_addr2;
 655
 656         if (!uec) {
 657                 printf("%s: uec not initial\n", __FUNCTION__);
 658                 return -EINVAL;
 659         }
 660
 661         uec_regs = uec->uec_regs;
 662
 663         /* if a station address of 0x12345678ABCD, perform a write to
 664         MACSTNADDR1 of 0xCDAB7856,
 665         MACSTNADDR2 of 0x34120000 */
 666
 667         mac_addr1 = (mac_addr[5] << 24) | (mac_addr[4] << 16) | \
 668                         (mac_addr[3] << 8)  | (mac_addr[2]);
 669         out_be32(&uec_regs->macstnaddr1, mac_addr1);
 670
 671         mac_addr2 = ((mac_addr[1] << 24) | (mac_addr[0] << 16)) & 0xffff0000;
 672         out_be32(&uec_regs->macstnaddr2, mac_addr2);
 673
 674         return 0;
 675 }
 676
 677 static int uec_convert_threads_num(uec_num_of_threads_e threads_num,
 678                                          int *threads_num_ret)
 679 {
 680         int     num_threads_numerica;
 681
 682         switch (threads_num) {
 683                 case UEC_NUM_OF_THREADS_1:
 684                         num_threads_numerica = 1;
 685                         break;
 686                 case UEC_NUM_OF_THREADS_2:
 687                         num_threads_numerica = 2;
 688                         break;
 689                 case UEC_NUM_OF_THREADS_4:
 690                         num_threads_numerica = 4;
 691                         break;
 692                 case UEC_NUM_OF_THREADS_6:
 693                         num_threads_numerica = 6;
 694                         break;
 695                 case UEC_NUM_OF_THREADS_8:
 696                         num_threads_numerica = 8;
 697                         break;
 698                 default:
 699                         printf("%s: Bad number of threads value.",
 700                                  __FUNCTION__);
 701                         return -EINVAL;
 702         }
 703
 704         *threads_num_ret = num_threads_numerica;
 705
 706         return 0;
 707 }
 708
 709 static void uec_init_tx_parameter(uec_private_t *uec, int num_threads_tx)
 710 {
 711         uec_info_t      *uec_info;
 712         u32             end_bd;
 713         u8              bmrx = 0;
 714         int             i;
 715
 716         uec_info = uec->uec_info;
 717
 718         /* Alloc global Tx parameter RAM page */
 719         uec->tx_glbl_pram_offset = qe_muram_alloc(
 720                                 sizeof(uec_tx_global_pram_t),
 721                                  UEC_TX_GLOBAL_PRAM_ALIGNMENT);
 722         uec->p_tx_glbl_pram = (uec_tx_global_pram_t *)
 723                                 qe_muram_addr(uec->tx_glbl_pram_offset);
 724
 725         /* Zero the global Tx prameter RAM */
 726         memset(uec->p_tx_glbl_pram, 0, sizeof(uec_tx_global_pram_t));
 727
 728         /* Init global Tx parameter RAM */
 729
 730         /* TEMODER, RMON statistics disable, one Tx queue */
 731         out_be16(&uec->p_tx_glbl_pram->temoder, TEMODER_INIT_VALUE);
 732
 733         /* SQPTR */
 734         uec->send_q_mem_reg_offset = qe_muram_alloc(
 735                                 sizeof(uec_send_queue_qd_t),
 736                                  UEC_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT);
 737         uec->p_send_q_mem_reg = (uec_send_queue_mem_region_t *)
 738                                 qe_muram_addr(uec->send_q_mem_reg_offset);
 739         out_be32(&uec->p_tx_glbl_pram->sqptr, uec->send_q_mem_reg_offset);
 740
 741         /* Setup the table with TxBDs ring */
 742         end_bd = (u32)uec->p_tx_bd_ring + (uec_info->tx_bd_ring_len - 1)
 743                                          * SIZEOFBD;
 744         out_be32(&uec->p_send_q_mem_reg->sqqd[0].bd_ring_base,
 745                                  (u32)(uec->p_tx_bd_ring));
 746         out_be32(&uec->p_send_q_mem_reg->sqqd[0].last_bd_completed_address,
 747                                                  end_bd);
 748
 749         /* Scheduler Base Pointer, we have only one Tx queue, no need it */
 750         out_be32(&uec->p_tx_glbl_pram->schedulerbasepointer, 0);
 751
 752         /* TxRMON Base Pointer, TxRMON disable, we don't need it */
 753         out_be32(&uec->p_tx_glbl_pram->txrmonbaseptr, 0);
 754
 755         /* TSTATE, global snooping, big endian, the CSB bus selected */
 756         bmrx = BMR_INIT_VALUE;
 757         out_be32(&uec->p_tx_glbl_pram->tstate, ((u32)(bmrx) << BMR_SHIFT));
 758
 759         /* IPH_Offset */
 760         for (i = 0; i < MAX_IPH_OFFSET_ENTRY; i++) {
 761                 out_8(&uec->p_tx_glbl_pram->iphoffset[i], 0);
 762         }
 763
 764         /* VTAG table */
 765         for (i = 0; i < UEC_TX_VTAG_TABLE_ENTRY_MAX; i++) {
 766                 out_be32(&uec->p_tx_glbl_pram->vtagtable[i], 0);
 767         }
 768
 769         /* TQPTR */
 770         uec->thread_dat_tx_offset = qe_muram_alloc(
 771                 num_threads_tx * sizeof(uec_thread_data_tx_t) +
 772                  32 *(num_threads_tx == 1), UEC_THREAD_DATA_ALIGNMENT);
 773
 774         uec->p_thread_data_tx = (uec_thread_data_tx_t *)
 775                                 qe_muram_addr(uec->thread_dat_tx_offset);
 776         out_be32(&uec->p_tx_glbl_pram->tqptr, uec->thread_dat_tx_offset);
 777 }
 778
 779 static void uec_init_rx_parameter(uec_private_t *uec, int num_threads_rx)
 780 {
 781         u8      bmrx = 0;
 782         int     i;
 783         uec_82xx_address_filtering_pram_t       *p_af_pram;
 784
 785         /* Allocate global Rx parameter RAM page */
 786         uec->rx_glbl_pram_offset = qe_muram_alloc(
 787                 sizeof(uec_rx_global_pram_t), UEC_RX_GLOBAL_PRAM_ALIGNMENT);
 788         uec->p_rx_glbl_pram = (uec_rx_global_pram_t *)
 789                                 qe_muram_addr(uec->rx_glbl_pram_offset);
 790
 791         /* Zero Global Rx parameter RAM */
 792         memset(uec->p_rx_glbl_pram, 0, sizeof(uec_rx_global_pram_t));
 793
 794         /* Init global Rx parameter RAM */
 795         /* REMODER, Extended feature mode disable, VLAN disable,
 796          LossLess flow control disable, Receive firmware statisic disable,
 797          Extended address parsing mode disable, One Rx queues,
 798          Dynamic maximum/minimum frame length disable, IP checksum check
 799          disable, IP address alignment disable
 800         */
 801         out_be32(&uec->p_rx_glbl_pram->remoder, REMODER_INIT_VALUE);
 802
 803         /* RQPTR */
 804         uec->thread_dat_rx_offset = qe_muram_alloc(
 805                         num_threads_rx * sizeof(uec_thread_data_rx_t),
 806                          UEC_THREAD_DATA_ALIGNMENT);
 807         uec->p_thread_data_rx = (uec_thread_data_rx_t *)
 808                                 qe_muram_addr(uec->thread_dat_rx_offset);
 809         out_be32(&uec->p_rx_glbl_pram->rqptr, uec->thread_dat_rx_offset);
 810
 811         /* Type_or_Len */
 812         out_be16(&uec->p_rx_glbl_pram->typeorlen, 3072);
 813
 814         /* RxRMON base pointer, we don't need it */
 815         out_be32(&uec->p_rx_glbl_pram->rxrmonbaseptr, 0);
 816
 817         /* IntCoalescingPTR, we don't need it, no interrupt */
 818         out_be32(&uec->p_rx_glbl_pram->intcoalescingptr, 0);
 819
 820         /* RSTATE, global snooping, big endian, the CSB bus selected */
 821         bmrx = BMR_INIT_VALUE;
 822         out_8(&uec->p_rx_glbl_pram->rstate, bmrx);
 823
 824         /* MRBLR */
 825         out_be16(&uec->p_rx_glbl_pram->mrblr, MAX_RXBUF_LEN);
 826
 827         /* RBDQPTR */
 828         uec->rx_bd_qs_tbl_offset = qe_muram_alloc(
 829                                 sizeof(uec_rx_bd_queues_entry_t) + \
 830                                 sizeof(uec_rx_prefetched_bds_t),
 831                                  UEC_RX_BD_QUEUES_ALIGNMENT);
 832         uec->p_rx_bd_qs_tbl = (uec_rx_bd_queues_entry_t *)
 833                                 qe_muram_addr(uec->rx_bd_qs_tbl_offset);
 834
 835         /* Zero it */
 836         memset(uec->p_rx_bd_qs_tbl, 0, sizeof(uec_rx_bd_queues_entry_t) + \
 837                                         sizeof(uec_rx_prefetched_bds_t));
 838         out_be32(&uec->p_rx_glbl_pram->rbdqptr, uec->rx_bd_qs_tbl_offset);
 839         out_be32(&uec->p_rx_bd_qs_tbl->externalbdbaseptr,
 840                  (u32)uec->p_rx_bd_ring);
 841
 842         /* MFLR */
 843         out_be16(&uec->p_rx_glbl_pram->mflr, MAX_FRAME_LEN);
 844         /* MINFLR */
 845         out_be16(&uec->p_rx_glbl_pram->minflr, MIN_FRAME_LEN);
 846         /* MAXD1 */
 847         out_be16(&uec->p_rx_glbl_pram->maxd1, MAX_DMA1_LEN);
 848         /* MAXD2 */
 849         out_be16(&uec->p_rx_glbl_pram->maxd2, MAX_DMA2_LEN);
 850         /* ECAM_PTR */
 851         out_be32(&uec->p_rx_glbl_pram->ecamptr, 0);
 852         /* L2QT */
 853         out_be32(&uec->p_rx_glbl_pram->l2qt, 0);
 854         /* L3QT */
 855         for (i = 0; i < 8; i++) {
 856                 out_be32(&uec->p_rx_glbl_pram->l3qt[i], 0);
 857         }
 858
 859         /* VLAN_TYPE */
 860         out_be16(&uec->p_rx_glbl_pram->vlantype, 0x8100);
 861         /* TCI */
 862         out_be16(&uec->p_rx_glbl_pram->vlantci, 0);
 863
 864         /* Clear PQ2 style address filtering hash table */
 865         p_af_pram = (uec_82xx_address_filtering_pram_t *) \
 866                         uec->p_rx_glbl_pram->addressfiltering;
 867
 868         p_af_pram->iaddr_h = 0;
 869         p_af_pram->iaddr_l = 0;
 870         p_af_pram->gaddr_h = 0;
 871         p_af_pram->gaddr_l = 0;
 872 }
 873
 874 static int uec_issue_init_enet_rxtx_cmd(uec_private_t *uec,
 875                                          int thread_tx, int thread_rx)
 876 {
 877         uec_init_cmd_pram_t             *p_init_enet_param;
 878         u32                             init_enet_param_offset;
 879         uec_info_t                      *uec_info;
 880         int                             i;
 881         int                             snum;
 882         u32                             init_enet_offset;
 883         u32                             entry_val;
 884         u32                             command;
 885         u32                             cecr_subblock;
 886
 887         uec_info = uec->uec_info;
 888
 889         /* Allocate init enet command parameter */
 890         uec->init_enet_param_offset = qe_muram_alloc(
 891                                         sizeof(uec_init_cmd_pram_t), 4);
 892         init_enet_param_offset = uec->init_enet_param_offset;
 893         uec->p_init_enet_param = (uec_init_cmd_pram_t *)
 894                                 qe_muram_addr(uec->init_enet_param_offset);
 895
 896         /* Zero init enet command struct */
 897         memset((void *)uec->p_init_enet_param, 0, sizeof(uec_init_cmd_pram_t));
 898
 899         /* Init the command struct */
 900         p_init_enet_param = uec->p_init_enet_param;
 901         p_init_enet_param->resinit0 = ENET_INIT_PARAM_MAGIC_RES_INIT0;
 902         p_init_enet_param->resinit1 = ENET_INIT_PARAM_MAGIC_RES_INIT1;
 903         p_init_enet_param->resinit2 = ENET_INIT_PARAM_MAGIC_RES_INIT2;
 904         p_init_enet_param->resinit3 = ENET_INIT_PARAM_MAGIC_RES_INIT3;
 905         p_init_enet_param->resinit4 = ENET_INIT_PARAM_MAGIC_RES_INIT4;
 906         p_init_enet_param->largestexternallookupkeysize = 0;
 907
 908         p_init_enet_param->rgftgfrxglobal |= ((u32)uec_info->num_threads_rx)
 909                                          << ENET_INIT_PARAM_RGF_SHIFT;
 910         p_init_enet_param->rgftgfrxglobal |= ((u32)uec_info->num_threads_tx)
 911                                          << ENET_INIT_PARAM_TGF_SHIFT;
 912
 913         /* Init Rx global parameter pointer */
 914         p_init_enet_param->rgftgfrxglobal |= uec->rx_glbl_pram_offset |
 915                                                  (u32)uec_info->risc_rx;
 916
 917         /* Init Rx threads */
 918         for (i = 0; i < (thread_rx + 1); i++) {
 919                 if ((snum = qe_get_snum()) < 0) {
 920                         printf("%s can not get snum\n", __FUNCTION__);
 921                         return -ENOMEM;
 922                 }
 923
 924                 if (i==0) {
 925                         init_enet_offset = 0;
 926                 } else {
 927                         init_enet_offset = qe_muram_alloc(
 928                                         sizeof(uec_thread_rx_pram_t),
 929                                          UEC_THREAD_RX_PRAM_ALIGNMENT);
 930                 }
 931
 932                 entry_val = ((u32)snum << ENET_INIT_PARAM_SNUM_SHIFT) |
 933                                  init_enet_offset | (u32)uec_info->risc_rx;
 934                 p_init_enet_param->rxthread[i] = entry_val;
 935         }
 936
 937         /* Init Tx global parameter pointer */
 938         p_init_enet_param->txglobal = uec->tx_glbl_pram_offset |
 939                                          (u32)uec_info->risc_tx;
 940
 941         /* Init Tx threads */
 942         for (i = 0; i < thread_tx; i++) {
 943                 if ((snum = qe_get_snum()) < 0) {
 944                         printf("%s can not get snum\n", __FUNCTION__);
 945                         return -ENOMEM;
 946                 }
 947
 948                 init_enet_offset = qe_muram_alloc(sizeof(uec_thread_tx_pram_t),
 949                                                  UEC_THREAD_TX_PRAM_ALIGNMENT);
 950
 951                 entry_val = ((u32)snum << ENET_INIT_PARAM_SNUM_SHIFT) |
 952                                  init_enet_offset | (u32)uec_info->risc_tx;
 953                 p_init_enet_param->txthread[i] = entry_val;
 954         }
 955
 956         __asm__ __volatile__("sync");
 957
 958         /* Issue QE command */
 959         command = QE_INIT_TX_RX;
 960         cecr_subblock = ucc_fast_get_qe_cr_subblock(
 961                                 uec->uec_info->uf_info.ucc_num);
 962         qe_issue_cmd(command, cecr_subblock, (u8) QE_CR_PROTOCOL_ETHERNET,
 963                                                  init_enet_param_offset);
 964
 965         return 0;
 966 }
 967
 968 static int uec_startup(uec_private_t *uec)
 969 {
 970         uec_info_t                      *uec_info;
 971         ucc_fast_info_t                 *uf_info;
 972         ucc_fast_private_t              *uccf;
 973         ucc_fast_t                      *uf_regs;
 974         uec_t                           *uec_regs;
 975         int                             num_threads_tx;
 976         int                             num_threads_rx;
 977         u32                             utbipar;
 978         enet_interface_e                enet_interface;
 979         u32                             length;
 980         u32                             align;
 981         qe_bd_t                         *bd;
 982         u8                              *buf;
 983         int                             i;
 984
 985         if (!uec || !uec->uec_info) {
 986                 printf("%s: uec or uec_info not initial\n", __FUNCTION__);
 987                 return -EINVAL;
 988         }
 989
 990         uec_info = uec->uec_info;
 991         uf_info = &(uec_info->uf_info);
 992
 993         /* Check if Rx BD ring len is illegal */
 994         if ((uec_info->rx_bd_ring_len < UEC_RX_BD_RING_SIZE_MIN) || \
 995                 (uec_info->rx_bd_ring_len % UEC_RX_BD_RING_SIZE_ALIGNMENT)) {
 996                 printf("%s: Rx BD ring len must be multiple of 4, and > 8.\n",
 997                          __FUNCTION__);
 998                 return -EINVAL;
 999         }
1000
1001         /* Check if Tx BD ring len is illegal */
1002         if (uec_info->tx_bd_ring_len < UEC_TX_BD_RING_SIZE_MIN) {
1003                 printf("%s: Tx BD ring length must not be smaller than 2.\n",
1004                          __FUNCTION__);
1005                 return -EINVAL;
1006         }
1007
1008         /* Check if MRBLR is illegal */
1009         if ((MAX_RXBUF_LEN == 0) || (MAX_RXBUF_LEN  % UEC_MRBLR_ALIGNMENT)) {
1010                 printf("%s: max rx buffer length must be mutliple of 128.\n",
1011                          __FUNCTION__);
1012                 return -EINVAL;
1013         }
1014
1015         /* Both Rx and Tx are stopped */
1016         uec->grace_stopped_rx = 1;
1017         uec->grace_stopped_tx = 1;
1018
1019         /* Init UCC fast */
1020         if (ucc_fast_init(uf_info, &uccf)) {
1021                 printf("%s: failed to init ucc fast\n", __FUNCTION__);
1022                 return -ENOMEM;
1023         }
1024
1025         /* Save uccf */
1026         uec->uccf = uccf;
1027
1028         /* Convert the Tx threads number */
1029         if (uec_convert_threads_num(uec_info->num_threads_tx,
1030                                          &num_threads_tx)) {
1031                 return -EINVAL;
1032         }
1033
1034         /* Convert the Rx threads number */
1035         if (uec_convert_threads_num(uec_info->num_threads_rx,
1036                                          &num_threads_rx)) {
1037                 return -EINVAL;
1038         }
1039
1040         uf_regs = uccf->uf_regs;
1041
1042         /* UEC register is following UCC fast registers */
1043         uec_regs = (uec_t *)(&uf_regs->ucc_eth);
1044
1045         /* Save the UEC register pointer to UEC private struct */
1046         uec->uec_regs = uec_regs;
1047
1048         /* Init UPSMR, enable hardware statistics (UCC) */
1049         out_be32(&uec->uccf->uf_regs->upsmr, UPSMR_INIT_VALUE);
1050
1051         /* Init MACCFG1, flow control disable, disable Tx and Rx */
1052         out_be32(&uec_regs->maccfg1, MACCFG1_INIT_VALUE);
1053
1054         /* Init MACCFG2, length check, MAC PAD and CRC enable */
1055         out_be32(&uec_regs->maccfg2, MACCFG2_INIT_VALUE);
1056
1057         /* Setup MAC interface mode */
1058         uec_set_mac_if_mode(uec, uec_info->enet_interface);
1059
1060         /* Setup MII management base */
1061 #ifndef CONFIG_eTSEC_MDIO_BUS
1062         uec->uec_mii_regs = (uec_mii_t *)(&uec_regs->miimcfg);
1063 #else
1064         uec->uec_mii_regs = (uec_mii_t *) CONFIG_MIIM_ADDRESS;
1065 #endif
1066
1067         /* Setup MII master clock source */
1068         qe_set_mii_clk_src(uec_info->uf_info.ucc_num);
1069
1070         /* Setup UTBIPAR */
1071         utbipar = in_be32(&uec_regs->utbipar);
1072         utbipar &= ~UTBIPAR_PHY_ADDRESS_MASK;
1073         enet_interface = uec->uec_info->enet_interface;
1074         if (enet_interface == ENET_1000_TBI ||
1075                  enet_interface == ENET_1000_RTBI) {
1076                 utbipar |=  (uec_info->phy_address + uec_info->uf_info.ucc_num)
1077                                                  << UTBIPAR_PHY_ADDRESS_SHIFT;
1078         } else {
1079                 utbipar |=  (0x10 + uec_info->uf_info.ucc_num)
1080                                                  << UTBIPAR_PHY_ADDRESS_SHIFT;
1081         }
1082
1083         out_be32(&uec_regs->utbipar, utbipar);
1084
1085         /* Configure the TBI for SGMII operation */
1086         if (uec->uec_info->enet_interface == ENET_1000_SGMII) {
1087                 uec_write_phy_reg(uec->dev, uec_regs->utbipar,
1088                         ENET_TBI_MII_ANA, TBIANA_SETTINGS);
1089
1090                 uec_write_phy_reg(uec->dev, uec_regs->utbipar,
1091                         ENET_TBI_MII_TBICON, TBICON_CLK_SELECT);
1092
1093                 uec_write_phy_reg(uec->dev, uec_regs->utbipar,
1094                         ENET_TBI_MII_CR, TBICR_SETTINGS);
1095         }
1096
1097         /* Allocate Tx BDs */
1098         length = ((uec_info->tx_bd_ring_len * SIZEOFBD) /
1099                  UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT) *
1100                  UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
1101         if ((uec_info->tx_bd_ring_len * SIZEOFBD) %
1102                  UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT) {
1103                 length += UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
1104         }
1105
1106         align = UEC_TX_BD_RING_ALIGNMENT;
1107         uec->tx_bd_ring_offset = (u32)malloc((u32)(length + align));
1108         if (uec->tx_bd_ring_offset != 0) {
1109                 uec->p_tx_bd_ring = (u8 *)((uec->tx_bd_ring_offset + align)
1110                                                  & ~(align - 1));
1111         }
1112
1113         /* Zero all of Tx BDs */
1114         memset((void *)(uec->tx_bd_ring_offset), 0, length + align);
1115
1116         /* Allocate Rx BDs */
1117         length = uec_info->rx_bd_ring_len * SIZEOFBD;
1118         align = UEC_RX_BD_RING_ALIGNMENT;
1119         uec->rx_bd_ring_offset = (u32)(malloc((u32)(length + align)));
1120         if (uec->rx_bd_ring_offset != 0) {
1121                 uec->p_rx_bd_ring = (u8 *)((uec->rx_bd_ring_offset + align)
1122                                                          & ~(align - 1));
1123         }
1124
1125         /* Zero all of Rx BDs */
1126         memset((void *)(uec->rx_bd_ring_offset), 0, length + align);
1127
1128         /* Allocate Rx buffer */
1129         length = uec_info->rx_bd_ring_len * MAX_RXBUF_LEN;
1130         align = UEC_RX_DATA_BUF_ALIGNMENT;
1131         uec->rx_buf_offset = (u32)malloc(length + align);
1132         if (uec->rx_buf_offset != 0) {
1133                 uec->p_rx_buf = (u8 *)((uec->rx_buf_offset + align)
1134                                                  & ~(align - 1));
1135         }
1136
1137         /* Zero all of the Rx buffer */
1138         memset((void *)(uec->rx_buf_offset), 0, length + align);
1139
1140         /* Init TxBD ring */
1141         bd = (qe_bd_t *)uec->p_tx_bd_ring;
1142         uec->txBd = bd;
1143
1144         for (i = 0; i < uec_info->tx_bd_ring_len; i++) {
1145                 BD_DATA_CLEAR(bd);
1146                 BD_STATUS_SET(bd, 0);
1147                 BD_LENGTH_SET(bd, 0);
1148                 bd ++;
1149         }
1150         BD_STATUS_SET((--bd), TxBD_WRAP);
1151
1152         /* Init RxBD ring */
1153         bd = (qe_bd_t *)uec->p_rx_bd_ring;
1154         uec->rxBd = bd;
1155         buf = uec->p_rx_buf;
1156         for (i = 0; i < uec_info->rx_bd_ring_len; i++) {
1157                 BD_DATA_SET(bd, buf);
1158                 BD_LENGTH_SET(bd, 0);
1159                 BD_STATUS_SET(bd, RxBD_EMPTY);
1160                 buf += MAX_RXBUF_LEN;
1161                 bd ++;
1162         }
1163         BD_STATUS_SET((--bd), RxBD_WRAP | RxBD_EMPTY);
1164
1165         /* Init global Tx parameter RAM */
1166         uec_init_tx_parameter(uec, num_threads_tx);
1167
1168         /* Init global Rx parameter RAM */
1169         uec_init_rx_parameter(uec, num_threads_rx);
1170
1171         /* Init ethernet Tx and Rx parameter command */
1172         if (uec_issue_init_enet_rxtx_cmd(uec, num_threads_tx,
1173                                          num_threads_rx)) {
1174                 printf("%s issue init enet cmd failed\n", __FUNCTION__);
1175                 return -ENOMEM;
1176         }
1177
1178         return 0;
1179 }
1180
1181 static int uec_init(struct eth_device* dev, bd_t *bd)
1182 {
1183         uec_private_t           *uec;
1184         int                     err, i;
1185         struct phy_info         *curphy;
1186
1187         uec = (uec_private_t *)dev->priv;
1188
1189         if (uec->the_first_run == 0) {
1190                 err = init_phy(dev);
1191                 if (err) {
1192                         printf("%s: Cannot initialize PHY, aborting.\n",
1193                                dev->name);
1194                         return err;
1195                 }
1196
1197                 curphy = uec->mii_info->phyinfo;
1198
1199                 if (curphy->config_aneg) {
1200                         err = curphy->config_aneg(uec->mii_info);
1201                         if (err) {
1202                                 printf("%s: Can't negotiate PHY\n", dev->name);
1203                                 return err;
1204                         }
1205                 }
1206
1207                 /* Give PHYs up to 5 sec to report a link */
1208                 i = 50;
1209                 do {
1210                         err = curphy->read_status(uec->mii_info);
1211                         udelay(100000);
1212                 } while (((i-- > 0) && !uec->mii_info->link) || err);
1213
1214                 if (err || i <= 0)
1215                         printf("warning: %s: timeout on PHY link\n", dev->name);
1216
1217                 uec->the_first_run = 1;
1218         }
1219
1220         /* Set up the MAC address */
1221         if (dev->enetaddr[0] & 0x01) {
1222                 printf("%s: MacAddress is multcast address\n",
1223                          __FUNCTION__);
1224                 return -1;
1225         }
1226         uec_set_mac_address(uec, dev->enetaddr);
1227
1228
1229         err = uec_open(uec, COMM_DIR_RX_AND_TX);
1230         if (err) {
1231                 printf("%s: cannot enable UEC device\n", dev->name);
1232                 return -1;
1233         }
1234
1235         phy_change(dev);
1236
1237         return (uec->mii_info->link ? 0 : -1);
1238 }
1239
1240 static void uec_halt(struct eth_device* dev)
1241 {
1242         uec_private_t   *uec = (uec_private_t *)dev->priv;
1243         uec_stop(uec, COMM_DIR_RX_AND_TX);
1244 }
1245
1246 static int uec_send(struct eth_device* dev, volatile void *buf, int len)
1247 {
1248         uec_private_t           *uec;
1249         ucc_fast_private_t      *uccf;
1250         volatile qe_bd_t        *bd;
1251         u16                     status;
1252         int                     i;
1253         int                     result = 0;
1254
1255         uec = (uec_private_t *)dev->priv;
1256         uccf = uec->uccf;
1257         bd = uec->txBd;
1258
1259         /* Find an empty TxBD */
1260         for (i = 0; bd->status & TxBD_READY; i++) {
1261                 if (i > 0x100000) {
1262                         printf("%s: tx buffer not ready\n", dev->name);
1263                         return result;
1264                 }
1265         }
1266
1267         /* Init TxBD */
1268         BD_DATA_SET(bd, buf);
1269         BD_LENGTH_SET(bd, len);
1270         status = bd->status;
1271         status &= BD_WRAP;
1272         status |= (TxBD_READY | TxBD_LAST);
1273         BD_STATUS_SET(bd, status);
1274
1275         /* Tell UCC to transmit the buffer */
1276         ucc_fast_transmit_on_demand(uccf);
1277
1278         /* Wait for buffer to be transmitted */
1279         for (i = 0; bd->status & TxBD_READY; i++) {
1280                 if (i > 0x100000) {
1281                         printf("%s: tx error\n", dev->name);
1282                         return result;
1283                 }
1284         }
1285
1286         /* Ok, the buffer be transimitted */
1287         BD_ADVANCE(bd, status, uec->p_tx_bd_ring);
1288         uec->txBd = bd;
1289         result = 1;
1290
1291         return result;
1292 }
1293
1294 static int uec_recv(struct eth_device* dev)
1295 {
1296         uec_private_t           *uec = dev->priv;
1297         volatile qe_bd_t        *bd;
1298         u16                     status;
1299         u16                     len;
1300         u8                      *data;
1301
1302         bd = uec->rxBd;
1303         status = bd->status;
1304
1305         while (!(status & RxBD_EMPTY)) {
1306                 if (!(status & RxBD_ERROR)) {
1307                         data = BD_DATA(bd);
1308                         len = BD_LENGTH(bd);
1309                         NetReceive(data, len);
1310                 } else {
1311                         printf("%s: Rx error\n", dev->name);
1312                 }
1313                 status &= BD_CLEAN;
1314                 BD_LENGTH_SET(bd, 0);
1315                 BD_STATUS_SET(bd, status | RxBD_EMPTY);
1316                 BD_ADVANCE(bd, status, uec->p_rx_bd_ring);
1317                 status = bd->status;
1318         }
1319         uec->rxBd = bd;
1320
1321         return 1;
1322 }
1323
1324 int uec_initialize(bd_t *bis, uec_info_t *uec_info)
1325 {
1326         struct eth_device       *dev;
1327         int                     i;
1328         uec_private_t           *uec;
1329         int                     err;
1330
1331         dev = (struct eth_device *)malloc(sizeof(struct eth_device));
1332         if (!dev)
1333                 return 0;
1334         memset(dev, 0, sizeof(struct eth_device));
1335
1336         /* Allocate the UEC private struct */
1337         uec = (uec_private_t *)malloc(sizeof(uec_private_t));
1338         if (!uec) {
1339                 return -ENOMEM;
1340         }
1341         memset(uec, 0, sizeof(uec_private_t));
1342
1343         /* Adjust uec_info */
1344 #if (MAX_QE_RISC == 4)
1345         uec_info->risc_tx = QE_RISC_ALLOCATION_FOUR_RISCS;
1346         uec_info->risc_rx = QE_RISC_ALLOCATION_FOUR_RISCS;
1347 #endif
1348
1349         devlist[uec_info->uf_info.ucc_num] = dev;
1350
1351         uec->uec_info = uec_info;
1352         uec->dev = dev;
1353
1354         sprintf(dev->name, "FSL UEC%d", uec_info->uf_info.ucc_num);
1355         dev->iobase = 0;
1356         dev->priv = (void *)uec;
1357         dev->init = uec_init;
1358         dev->halt = uec_halt;
1359         dev->send = uec_send;
1360         dev->recv = uec_recv;
1361
1362         /* Clear the ethnet address */
1363         for (i = 0; i < 6; i++)
1364                 dev->enetaddr[i] = 0;
1365
1366         eth_register(dev);
1367
1368         err = uec_startup(uec);
1369         if (err) {
1370                 printf("%s: Cannot configure net device, aborting.",dev->name);
1371                 return err;
1372         }
1373
1374 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) \
1375         && !defined(BITBANGMII)
1376         miiphy_register(dev->name, uec_miiphy_read, uec_miiphy_write);
1377 #endif
1378
1379         return 1;
1380 }
1381
1382 int uec_eth_init(bd_t *bis, uec_info_t *uecs, int num)
1383 {
1384         int i;
1385
1386         for (i = 0; i < num; i++)
1387                 uec_initialize(bis, &uecs[i]);
1388
1389         return 0;
1390 }
1391
1392 int uec_standard_init(bd_t *bis)
1393 {
1394         return uec_eth_init(bis, uec_info, ARRAY_SIZE(uec_info));
1395 }